Gardner, G. T., Sampat, P., & Peterson, J. A. (1998). Mind over matter: Recasting the role of materials in our lives. Worldwatch Institute.
Lua i Stíl Chicago (17ú heag.)Gardner, Gary T., Payal Sampat, agus Jane A. Peterson. Mind over Matter: Recasting the Role of Materials in Our Lives. Washington, D.C.: Worldwatch Institute, 1998.
Lua MLA (8ú heag.)Gardner, Gary T., et al. Mind over Matter: Recasting the Role of Materials in Our Lives. Worldwatch Institute, 1998.
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